bd6ef73399
VAAPI on Intel can import external frame, but the planes of the external frames should be in the same drm object. A new option "contiguous_planes" is added to device. This flag tells device to allocate places in one memory. When device is derived from vaapi this flag will be enabled. A new flag frame_flag is also added to AVVulkanFramesContext. User can use this flag to force enable or disable this behaviour. A new variable "offset "is added to AVVKFrame. It describe describe the offset from the memory currently bound to the VkImage. Signed-off-by: Wenbin Chen <wenbin.chen@intel.com> Further-modifications-by: Lynne <dev@lynne.ee>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analysis tool to inspect multimedia content.
- Additional small tools such as
aviocat,ismindexandqt-faststart.
Documentation
The offline documentation is available in the doc/ directory.
The online documentation is available in the main website and in the wiki.
Examples
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch or git send-email. Github pull requests should be
avoided because they are not part of our review process and will be ignored.